I am creating obstacles based on a grid as you can see on the image. The obstacle is draggable to change its height. There are 2 types of obstacles one is relative where each cube is raised the same amount. And non relative, where each cube is raised a different amount to form a flat top. My impleme…

[image] Use GPUComputationRenderer texture for dynamic InstancedMesh objects positions Questions Read the texture with heights in vertex shader and add that value to Y-component of translate values of instanceMatrix. shader.vertexShader = ` uniform sampler2D hei…

I think you have too many draw calls, you probably need to draw the group as one.

op said he’s instancing them already. sounds like just the javascript side update traversal of OPs datastructure to recompute the transforms, that is chugging them.

OP post some code… otherwise it will be harder to help you/diagnose. What does your loop to recompute the boxes and set their .instanceMatrix’s look like?

[image] manthrax: instancing them already. 2000 instances as boxes sounds rapid

Tried it with InstancedBufferGeometry. Picture: [изображение] Demo: https://codepen.io/prisoner849/full/QwLyzbd

Wow this really looks amazing. I am having trouble understanding the shader code, as I have no experience in shaders, so Ill have to start learning, but do you think your implementation would work well with dragging?

I will show my component here. I think the main problem is that when I start dragging, the changeObstacleHeight function is running on every drag function call, and this drag function call happens 20-100 times per sec. Also I have to sync it with a mobx store. import { Instances, Instance } from '@…

Looking for ideas

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Lawrence3DPK December 5, 2024, 2:24pm 3

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